Squeezing power out of the C63 AMG Black Series is not easy. Being able to do so certainly separates quality M156 tuners from the rest. What is interesting to note is the results here are not all that different from the M156 V8 507 edition W204 C63 AMG Eurocharged tuned which shares the same engine internals.

Additionally, keep in mind the Eurocharged Dyno Dynamics is reading close to a Dynojet based on Renntech C63 AMG Black Series tune only results on a Dynojet which puts these numbers in context.

Eurocharged sees gains throughout the curve with a peak horsepower difference of 21 at the wheels. This is a very nice tune only gain on the aggressively tuned from the factory C63 AMG Black Series.

It seems the ~20 wheel horsepower range is about the limit to squeeze on pump gas out of the motor tune only while maintaining a safety margin. Fuel quality will likely be the major variable but if you want more power out of your Black Series quality tuners can get you it.

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